skip to main content

Carbon neutrality of wastewater treatment - A systematic concept beyond the plant boundary

Li, Lanqing ; Wang, Xiuheng ; Miao, Jingyu ; Abulimiti, Aliya ; Jing, Xinsheng ; Ren, Nanqi

Environmental science and ecotechnology, 2022-07, Vol.11, p.100180-100180, Article 100180 [Periódico revisado por pares]

Elsevier B.V

Texto completo disponível

Citações Citado por
  • Título:
    Carbon neutrality of wastewater treatment - A systematic concept beyond the plant boundary
  • Autor: Li, Lanqing ; Wang, Xiuheng ; Miao, Jingyu ; Abulimiti, Aliya ; Jing, Xinsheng ; Ren, Nanqi
  • Assuntos: Carbon neutrality ; Fossil CO2 emissions ; System boundaries ; Systematic thinking ; Wastewater treatment
  • É parte de: Environmental science and ecotechnology, 2022-07, Vol.11, p.100180-100180, Article 100180
  • Notas: ObjectType-Article-2
    SourceType-Scholarly Journals-1
    ObjectType-Feature-3
    content type line 23
    ObjectType-Review-1
  • Descrição: Recently, every industry has been working to achieve carbon neutrality, and the wastewater sector is no exception. However, little research focuses on the carbon accounting of wastewater treatment and the roadmap to carbon neutrality. Here, to systematically perform accounting, we provide a sketch that describes three boundaries of the wastewater system and propose that the carbon neutrality of the wastewater system is far beyond the plant boundary. Moreover, we identify the direct and indirect carbon emissions of wastewater treatment. In addition to direct emissions of CH4 and N2O, direct fossil CO2 emissions from wastewater treatment should be included in accounting to set accurate guidelines. Next, the technologies that assist in achieving carbon-neutral wastewater treatment both within-the-fence of wastewater treatment plants and beyond the plant boundary are summarized. All measurements of energy recovery, resource recovery, and water reuse contribute to reaching this goal. The concepts of energy neutrality and carbon neutrality are identified. Successful wastewater treatment cases in energy self-sufficiency may not achieve carbon neutrality. Meanwhile, resource recovery methods are encouraged, especially to produce carbon-based materials. Ultimately, the trend of preference for the decentralized sewage treatment system is pinpointed, and systematic thinking to set the urban infrastructure layout as a whole is advocated. •Carbon neutrality of wastewater system is far beyond the treatment plant boundary.•Direct fossil CO2 emissions is suggested to be included into carbon accounting.•Energy self-sufficiency within WWTPs is a narrow sense of carbon neutrality.•Resource recovery methods for carbon-based materials are encouraged.•The decentralized system holds advantages in energy and resource recovery.
  • Editor: Elsevier B.V
  • Idioma: Inglês

Buscando em bases de dados remotas. Favor aguardar.